Method of making paper boxes.



No. 676,963. Patented lime 25. |90l. F. J. HEINHOLD.

METHOD 0F MAKING PAPER BOXES.

(Application led Juy 25, 1900.)

(No Model. 2 Sheets$heet 1 s mi is a E 'i M -NU LQ 3 ml mf may.; am: y Hll llllli i: I; l l

N: MII i f No. 676,963. Patented lune 25, mol. F. J. REmHoLn.

METHODDF MAKING PAPER BOXES.

(Application led July 25, 1900.) (No Model.) 2 Sheets-Sheet 2.

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ivrrn PATENT turion.,

FRANK J. REINIIOLD, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO VALEXANDER H. REINHOLD, OF SAME PLACE.

METHOD OF MAKING PAPER BOXES..

SPECIFICATION forming part of Letters Patent No. 676,963, dated June 25, 1901.

Original application filed December 21, 1899, Serial No. 741,146. Divided and this application tiled July 25, 1900. Serial No.241'749. (No specimens.)

To all whom, it' may concern:

Beit known that I, FRANK J. REINHOLD, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan,

have invented a certain new and useful Improvement in Methods of Making Paper Boxes; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art ro to which it pertains to make and use the same, reference being had -to the accompanying drawings, which form a part of this specification.

My invention relates to improvements in the method of manufacturing paper boxes,

and relates more particularly to the means for drying the glued surfaces of the boxes and the means for causing the glue to hold the surfaces together more effectually.

This application is the division of Van application iiled by me December 2l, 1899, Serial No. 741,146, in which said application -both the machines and method were originally claimed. For the purpose, therefore, of describing and disclosing my inventionV I tile herewith copies of a part of the drawings, and I use herein the description employed in the aforesaid application. Said drawings are as follows:

3o Figure lis a side elevation of a machine for making paper boxes, partly in section. Figs. 2 and 3 are views showing details of the re-pressing device.

In the drawings, A represents the table or bed of the machine, which may be supported upon any suitable standards.

B is the main shaft of the machine, mounted in bearings B and B2, the shaft being parallel with the table. The bearing B2 is supported 4o from the table on the vertical support l), and the bearing B' is supported on the vertical support b'. The main shaft B is driven by any suitable means and is provided with the hand-wheel B3 at the front of the machine to provide means for turning the shaft by hand in adjusting the machine.

B4 is a rod extending through underneath the bed and is provided at the front of the machine with a small hand-wheel h2. This shaft operates the clutch mechanism at the 5o rear of the machine, whereby the operator from in front can start or stop the same at will.

The machine is provided with the usual means for feeding paper or cardboard, for scoring it, for gluing it, and for cutting it off. The glue mechanism is underneath the machine and is not shown, except the cam O and the connectingerod c. The paper travels on the line D and is first operated upon in the 6c machine by the slitting device E, operating from cam C'. This device cuts two parallel slits in the paper at the point where it is to be cut off and in such a manner that the slits will extend an equal distance into each blank, leaving between the slits what is known as the end iiaps and outside of the Aslits the side flaps. The slitting device moves up and down in the machine in guides formed in the standard E. 7o

The feeding device consists of the feedingrolls E and F', mounted in the vertical standard F2. These rolls are geared together and are driven from the gear F3, mounted in the standard E.

E4 is a transverse rock-shaft mounted in the standards E2 and is rocked by means of the arm F5 and the cam C2.

F6 is a horizontal arm attached to the rockshaft F4, the free end of which is caused to 8o move up and down as the shaft is operated by the cam O2.

f is a connecting-rod operated by the arm FG. The reciprocating movement of this connecting-rod is communicated to the driving gear-wheel E3 through a ratchet mechanism in the usual manner, whereby the feedingrolls are given the necessary intermittent movement for feeding the paper.

G is a supporting-frame that is bolted to 9o the bed and that rises to a sufficient height to form the support for the bearing B and to serve as the guide for the former-plunger I-I as well as the plunger I, bearing the knife 1l for cutting off blanks. The plunger I is operated by the cam C3 and the former-plunger H is operated by the cam C4. The means for cutting off the blank andffor forming the box from the blank are quite similar to those employed heretofore in the art.

The cardboard is fed under the formerplunger by the operation of the feeding-rolls, and through the action of the cams the formerplunger and the knife move downward until the knife severs the blank from the sheet, after which the continued movement of the former-plunger forces the blank downward into a female die, folding up the side of the box, leaving the end flap extending in a horizontal direction and the side fiaps standing in a vertical direction. Asis common in this class of machines, the former-plunger rests a moment while the folding-fingers o4 move in to fold in the side flaps. These fingers are operated from the cam c through the rockarm c', the rock-shaft c2, and the arm c3. After the side flaps are folded in the formerplunger continuesits movement downinto the female die, folding the end flaps up against the side aps and plunger and then carrying the whole box downward into a pocket J, formed in a horizon tal carrying-wheel K. This wheel is provided with a series of these pockets, preferably about ten in number, and the wheel itself is mounted on the hollow hub K. The wheel proper'is formed of one casting, the outer ends of the pockets being closed by the plates p.' As the former-plunger forces one box into the pocket it forces the box already in the pocket downward to a lower position, and after the pockets are filled Withboxes the entry of a newbox in the top of the pocket discharges a completed box from the bottom. L is a bar arranged to reciprocate along the side of the machine and is operated by the arm L', fixed to the shaft f2. On the bar L is pivoted a dog, (not shown,) which engages with the periphery of the wheel K as the bar is operated to move the wheel forward a sufficient distance to bring another pocket under the plunger. To the outer end of the bar L is pivoted a second dog M', which engages with the wheel to lock it when it is at the point of rest and during the time the former-plunger is forcing a box into one of the pockets of the wheel.

N is a friction-plate arranged to be drawn down on the hub to increase the resistance to its movement. f

O is a re-pressing device arranged to enter the pocket in the wheel that is directly opposite the one under the former-plunger. The purpose of this re-pressing device is to force the glued surfaces of the box a second time into close contact and at the time when the glue is partly set or beginning to set. The means I employ for accomplishing this result consist in an expanding plunger, consisting ofthe opposite sections o o, the

two sections being held in operative relations on and by the pins p p" and being normally drawn toward each other by the spring p5 p5. This expanding plunger is fixed to the plunger-rod P, and the rod is arranged to move up and down in a way formed in the standard P'. The plunger-rod and plunger are moved up and down simultaneously with the formerplunger by the lever '292, the end of the lever being engaged with the former-plunger by a universal jointp. Extending out from the plunger-rod P are supports p2 p2, in which is mounted a vertical cam-rod p3, provided with the cam p4 at its lower end, located between the sections of the expanding plunger. The cam-rod p3 is provided with an arm p6, which travels along the surface of a campl, fixed to the standard p', the construction being such that the cam-rod p3 is given a part of a turn as it travels down, the rotation of the rod causing the cam p4 to force the opposite sections of the plunger O apart and against the glued sections of the box.

One of the objects of myinvention is to reduce the size of the carrying or drying wheel and still have the boxes when delivered from the wheel perfectly glued. This result I accomplish by the use of a re-pressing device arranged to force the glued surfaces together after the glue has had time to partially dry and by the use of my plan for entering and discharging the boxes from the wheel, which consists in entering one box in each pocket until each pocket contains a box and then entering a second box in each pocket on top of the first box. The two features may be united in the same machine or they may be used independently with proportional advantage. Thus the re-pressing device may be used where but Aone box is carried in a pocket at a time, or the entering of the boxesin the pockets in the series, as described, may be used without the re-pressing device.

I will have it understood that While I have shown a horizontal wheel in combination with the forming and re-pressing devices arranged to carry more than one series of boxes the same combination may be made using an upright wheel or any other form of traveling pockets. My invention thus does not consist alone in the machine, butin the method of using any machine adapted to the purposes.

of myimproved method.

' Having thus described my invention, what I claim is 1. The within-described method of forming and gluing boxes, consisting of forming and entering a single box into each one of a series IOO IIC)

of pockets until all of the pockets are occu- 2. The within-described method of uniting In testimony whereof I sign this specificathe glued surfaces of the boxes consisting of tion in the presence of two Witnesses.

lirst formino` and entering the box in one of a series of pboekets, and lchen moving the se- FRANK J' REINHQLD' 5 ries of pockets forward one or more points, Witnesses:

- and then re-pressing the boxes in the pook- S. E. THOMAS,

ets, substantially as described. FRANK DEVOE. 

